Design of electronic driving circuits for ultrasound phased array

Abstract

This report describes the design and implementation of an electronic circuit for driving a single ultrasound transducer, as well as the proposal to drive a n-by-n transducer array. The electronic circuit includes a digital delay line, an integrator amplifier, a pulse width modulation generator, a comparator, a power amplifier and a L-C low-pass filter. The prototype circuits demonstrate how a single and phased array driving circuits could be derived. Detailed working principles for each circuit module were discussed with respective output waveforms and illustrations.